| Mastah vs Jin | 16–34 | 32.00% |
| Mastah vs Lidia | 25–15 | 62.50% |
| Mastah vs Kazuya | 15–22 | 40.54% |
| Mastah vs Eddy | 16–20 | 44.44% |
| Mastah vs Bryan | 17–17 | 50.00% |
| Mastah vs Hwoarang | 14–17 | 45.16% |
| Mastah vs Lili | 9–18 | 33.33% |
| Mastah vs Dragunov | 13–12 | 52.00% |
| Mastah vs King | 12–12 | 50.00% |
| Mastah vs Reina | 16–8 | 66.67% |
| Mastah vs Law | 10–13 | 43.48% |
| Mastah vs Devil Jin | 11–8 | 57.89% |
| Mastah vs Jun | 8–11 | 42.11% |
| Mastah vs Nina | 10–8 | 55.56% |
| Mastah vs Victor | 9–9 | 50.00% |
| Mastah vs Steve | 4–12 | 25.00% |
| Mastah vs Yoshimitsu | 3–12 | 20.00% |
| Mastah vs Feng | 3–11 | 21.43% |
| Mastah vs Azucena | 5–9 | 35.71% |
| Mastah vs Paul | 6–7 | 46.15% |
| Mastah vs Asuka | 5–7 | 41.67% |
| Mastah vs Alisa | 6–5 | 54.55% |
| Mastah vs Claudio | 7–2 | 77.78% |
| Mastah vs Lee | 5–4 | 55.56% |
| Mastah vs Lars | 4–4 | 50.00% |
| Mastah vs Zafina | 4–4 | 50.00% |
| Mastah vs Xiaoyu | 4–3 | 57.14% |
| Mastah vs Kuma | 3–4 | 42.86% |
| Mastah vs Leroy | 3–3 | 50.00% |
| Mastah vs Leo | 3–2 | 60.00% |
| Mastah vs Jack-8 | 3–1 | 75.00% |
| Mastah vs Raven | 1–2 | 33.33% |
| Mastah vs Shaheen | 0–2 | 0.00% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.